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PHP Operators and Expressions

PHP Operators and Expressions
What will be the output of the following PHP code ?
$x = 30;
$y = 20;
$z = 10;
echo $x + $y - $z / ($z - $y);

51
-5
41
-4

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PHP Operators and Expressions
In PHP the integer 45 is stored exactly as 45. The floating point number 46.3 could be stored as.

46.3
46.2999999
46
none of above

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PHP Operators and Expressions
If you do something to an integer that makes it larger than the maximum allowable integer or smaller than the minimum possible integer, the PHP interpreter converts the result into a . . . . .

Floating point number
String
Integers
None of above

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PHP Operators and Expressions
What will be the output of the following PHP code ?
echo $red;

Error
True
0
Nothing

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PHP Operators and Expressions
What will be the output of the following PHP code ?
$a = "$winner";
$b = "/$looser";
echo $a,$b;

/$looser
/
$winner/$looser
$looser

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PHP Operators and Expressions
PHP can automatically convert integers to floating point numbers and floating point numbers to integers.

TRUE
FALSE

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